Similar to bypass mode, the internal mode also provides a mechanism to pass
information directly from the software to the user logic. In addition to address and
length, the H2C Stream descriptor also has a 32b metadata field. This field is not used
by the QDMA for the DMA operation. Instead,
it is passed on to the user logic on the H2C AXI4-Stream tuser on every beat of the packet. Passing metadata on the tuser is not supported for a queue in bypass mode and
consequently there is no input to provide the metadata on the QDMA H2C Stream bypass-in
interface.